Weather on March 31
San Francisco, CA
55 Years of Data
Avg High
63°F
Avg Low
49°F
Warmest
2000
72°F avg
Coldest
1982
47°F avg
About This Date
March 31st in San Francisco, CA typically brings mild spring weather, with average highs around 63°F and lows near 49°F. Over 56 years of records, the warmest March 31st was in 2000 (72°F average), while the coldest was 1982 (47°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 27% of March 31st dates historically, with the wettest March 31st recording 6.53" of rain. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for March 31st in San Francisco, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 66° | 58° | 62° | 0.23" | — |
| 2025 | 61° | 50° | 55° | 0.84" | — |
| 2024 | 62° | 51° | 57° | — | — |
| 2023 | 58° | 46° | 52° | — | — |
| 2022 | 63° | 48° | 55° | — | — |
| 2021 | 80° | 54° | 67° | — | — |
| 2020 | 62° | 52° | 57° | — | — |
| 2019 | 72° | 50° | 61° | — | — |
| 2018 | 60° | 51° | 56° | — | — |
| 2017 | 71° | 54° | 62° | — | — |
| 2016 | 59° | 52° | 55° | — | — |
| 2015 | 62° | 52° | 57° | — | — |
| 2014 | 56° | 47° | 51° | 1.93" | — |
| 2013 | 63° | 54° | 58° | 1.24" | — |
| 2012 | 60° | 48° | 54° | 1.45" | — |
| 2011 | 82° | 59° | 71° | — | — |
| 2010 | 55° | 44° | 50° | 1.32" | — |
| 2009 | 65° | 47° | 56° | — | — |
| 2008 | 59° | 43° | 51° | — | — |
| 2007 | 70° | 47° | 58° | — | — |
| 2006 | 57° | 48° | 53° | 0.89" | — |
| 2005 | 72° | 41° | 56° | — | — |
| 2004 | 60° | 49° | 54° | — | — |
| 2003 | 60° | 51° | 56° | — | — |
| 2002 | 64° | 46° | 55° | — | — |
| 2001 | 68° | 50° | 59° | — | — |
| 2000warmest | 82° | 62° | 72° | — | — |
| 1999 | 52° | 42° | 47° | 0.05" | — |
| 1998 | 52° | 46° | 49° | 1.24" | — |
| 1997 | 59° | 47° | 53° | — | — |
| 1996 | 73° | 50° | 62° | — | — |
| 1995 | 66° | 50° | 58° | — | — |
| 1994 | 68° | 47° | 57° | — | — |
| 1993 | 64° | 50° | 57° | 0.99" | — |
| 1992 | 69° | 51° | 60° | — | — |
| 1991 | 62° | 52° | 57° | — | — |
| 1990 | 56° | 47° | 51° | — | — |
| 1989 | 64° | 50° | 57° | — | — |
| 1988 | 77° | 58° | 67° | — | — |
| 1987 | 80° | 53° | 67° | — | — |
| 1986 | 69° | 55° | 62° | — | — |
| 1985 | 76° | 49° | 62° | — | — |
| 1984 | 54° | 46° | 50° | 0.03" | — |
| 1983 | 64° | 52° | 58° | — | — |
| 1982coldest | 52° | 43° | 47° | 6.53" | — |
| 1981 | 56° | 48° | 52° | — | — |
| 1980 | 59° | 49° | 54° | — | — |
| 1979 | 65° | 50° | 57° | — | — |
| 1978 | 60° | 54° | 57° | 1.52" | — |
| 1977 | 61° | 48° | 54° | — | — |
| 1976 | 52° | 44° | 48° | 0.03" | — |
| 1975 | 59° | 48° | 54° | — | — |
| 1974 | 56° | 49° | 52° | 1.3" | — |
| 1973 | 54° | 48° | 51° | — | — |
| 1972 | 62° | 46° | 54° | — | — |
| 1971 | 60° | 45° | 52° | — | — |
56 years of data from SAN FRANCISCO DWTN